[机] 氟化锌

SSS 2010-12-29

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. Beauty is only skin deep. And the beauty of shiny white teeth is even less deep. Because a new study shows that fluoride forms a thinner protective shiel

发表于:2018-12-02 / 阅读(109) / 评论(0)

Scientific American(十二)月

Dental Health

07 牙病的预防与治疗 DATE=2-27-01 TITLE=SCIENCE IN THE NEWS #2113 - (1)Dental Health BYLINE=Nancy Steinbach VOICE ONE: This is Sarah Long. VOICE TWO: And this is Bob Doughty with Science in the

发表于:2018-12-07 / 阅读(82) / 评论(0)

科技之光

口腔临床英语对话第29期:正畸治疗(2)

Is it necessary to have cavities in the baby teeth repaired? 乳牙蛀成了洞还有必要补上吗？ If the baby teeth are going to fall out, I don't think that it matters if they become decayed. 如果乳牙是要脱落的，我想蛀了也没有关

发表于:2018-12-27 / 阅读(108) / 评论(0)

口腔临床英语对话

英语沙龙:Fresh Richer-新贵

Fresh Richer A fresh richer is purchasing coffin in the store for the death．A person asks him：Which one is better？He says：Of course the zinc1)－filled is more durable2)，but the wooden is helpful to the health．新贵一个新贵在墓葬

发表于:2019-01-01 / 阅读(74) / 评论(0)

英语沙龙

VOA标准英语2010年-Coal Burning Linked to Fluoride Diseas

A cluster of villages in China's Guizhou province has been plagued by an outbreak of disease that damages teeth and bones. Now, a new study by Chinese and American researchers puts the blame on polluted coal burned in home fireplaces. In small quanti

发表于:2019-01-14 / 阅读(87) / 评论(0)

VOA标准英语2010年(十)月

投资者寻求避险:黄金、石油价格上涨

Gold, Oil Prices Up as Investors Seek Safe Haven 投资者寻求避险:黄金、石油价格上涨 NEW YORK The up-and-down prices of oil and gold mirror the unsettled world situation, and both reflect the economic squeeze most nations currently face

发表于:2019-01-14 / 阅读(73) / 评论(0)

VOA标准英语2016年(三月)

TED演讲:怎样选择适合你的防晒霜(1)

Sunscreen comes in many forms, each with its own impacts on your body and the environment. 防晒霜有很多种，每种对你的身体和环境影响各有不同。 With so many options, how do you choose which sunscreen is best for you? 有了这么

发表于:2019-01-17 / 阅读(104) / 评论(0)

TED演讲教育篇

科学美国人60秒 SSS 海狸牙齿的奥秘

Ah yes.The ol' fluoride rinse at the dentist. Not pleasant. But hey, good for your teeth, right? 没错，这是牙医洗牙用的含氟漱口水。确实够闹心的。但毕竟对你的牙齿有益不是吗? Well now materials scientists have been

发表于:2019-01-20 / 阅读(81) / 评论(0)

2018年科学美国人1月

神探夏洛克第一季第二集_7

神探夏洛克第一季第二集_7 你知道这谁画的么我认得这颜料 Know the author? I recognise the paint. 像密歇根产的喷力强劲 It's like Michigan...hard-core propellant. 我猜含锌 I'd say zinc. 那个符号呢你认识么

发表于:2019-01-28 / 阅读(214) / 评论(0)

神探夏洛克第一季

SCIENCE IN THE NEWS - Dental Health

SCIENCE IN THE NEWS - November 26, 2002: Dental Health By Nancy Steinbach VOICE ONE: This is Steve Ember. VOICE TWO: And this is Bob Doughty with Science in the News, a VOA Special English program abo

发表于:2019-01-30 / 阅读(94) / 评论(0)

科技之光

SCIENCE IN THE NEWS - From A to Zinc: The Story of Vitamins

SCIENCE IN THE NEWS - From A to Zinc: The Story of Vitamins By Nancy Steinbach Broadcast: Tuesday, March 29, 2005 (MUSIC) VOICE ONE: I'm Bob Doughty with Phoebe Zimmermann, and this is the VOA Special

发表于:2019-01-30 / 阅读(101) / 评论(0)

科技之光

这个秋天吃更多什么食物来保持你的皮肤健康

What can you eat this fall to keep your skin healthy, soft and smooth while preventing wrinkles from forming? Ask a dermatologist or a nutrition expert. They will tell you that a well-balanced diet containing antioxidants will really help to keep ski

发表于:2019-02-01 / 阅读(119) / 评论(0)

实用英语

学个词 Learn a Word-VOA英语教学 2280-fluoride

今天我们要学的词是 fluoride. Fluoride 氟化物。The U.S. government is lowering the recommended amount of fluoride added to drinking water for the first time in more than 50 years. 美国政府50多年来首次降低饮用水建议添加的氟

发表于:2019-02-02 / 阅读(82) / 评论(0)

英语单词荟萃

万万没想到：原来红薯这么有营养！

Here are some facts about sweet potatoes you probably don't know: 这里有一些关于红薯你可能还不知道的事实： Sweet Potatoes Originated in the Americas 红薯起源于美洲 They're in the family of plants that includes morning glori

发表于:2019-02-02 / 阅读(56) / 评论(0)

阅读空间

Zinc Leads to Shorter, Milder Colds

Zinc supplements reduce the average cold by about a day and also make symptoms（症状） less severe, according to the latest findings. There's no cure for the common cold, but there's no shortage of ways to treat the symptoms. For a number of year

发表于:2019-02-05 / 阅读(68) / 评论(0)

英语新闻

圣诞节习俗：奥地利的圣诞习俗

奥地利 Christmas celebrations start with the feast of St. Nicholas. Saint is accompanied with a devil. He asks small children about their good and bad actions. Toys, sweets and nuts are gifted to good children. Brass instruments are used for playi

发表于:2019-02-13 / 阅读(53) / 评论(0)

英语作文

经济学人236:金属,自己愈合吧 Metal,heal thyself

Metal, heal thyself 金属，自己愈合吧 Materials science: Researchers have devised an ingenious way for the damaged surfaces of metals to repair themselves when they come to harm 材料科学：研究人员构想出了一种新颖独特的方法，

发表于:2019-02-17 / 阅读(87) / 评论(0)

经济学人综合

如何地道表达“冷死了”？

1. It's freezing/chillyout there! 外面冷死了! 2. It's a bit nippytoday, but I will still run my usual distance。虽然今天有点冷，但我还是会坚持和往常跑一样远的。 3. There is a real nip in the airtoday。今天寒气袭人

发表于:2019-02-17 / 阅读(51) / 评论(0)

英语口语

保持头发健康的最佳食物

It takes more than shampoo and conditioner to maintain the charm of shiny and manageable hair. See what you should eat to keep those tresses healthy, alluring and strong. 为了维持有光泽且易打理的头发，仅仅用洗发水和护发素是不

发表于:2019-02-17 / 阅读(141) / 评论(0)

阅读空间

历年考研英语的高频单词-Z

发表于:2019-02-18 / 阅读(78) / 评论(0)

考研英语

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